One of the first steps you take when you are making a decision about your gardening schedule is find your USDA Zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

You can figure out when to plant plectranthus in El Cajon by using the USDA zone info.

Planting Calendar for Plectranthus

Frost tolerance for plectranthus:	Not tolerant of frost.
When to plant:	After all chance of frost has passed.

Since plectranthus are not cold tolerant it is important to wait until after the last frost before you can plant them.

The earliest that you can plant plectranthus in El Cajon is February. However, you really should wait until March if you don't want to take any chances.

The last month that you can plant plectranthus and expect a good harvest is probably September. Any later than that and your plectranthus may not have a chance to fully mature. You can get started a few weeks earlier by starting your plectranthus indoors.

Last Frost Date

On average all chance of frost has passed is on January 31 in El Cajon. You should expect an average low temperature of 30°F in the coldest months of winter.

Since the USDA zone info for El Cajon may not be accurate from year to year the actual date of last frost changes from year to year. Since half of the time in El Cajon last frost occurs after January 31 be ready to protect your plectranthus in the event of one of those late frosts.

USDA Zone Info for El Cajon

Here is the info for USDA Zone 10a.

Average Date of Last Frost (spring)	January 31
Average Date of First Frost (fall)	December 15
Lowest Expected Low	30°F
Highest Expected Low	35°F

This means that on a really cold year, the coldest it will get is 30°F. On most years you should be prepared to experience lows near 35°F.

Plants to Grow in El Cajon

You may be interested in your other planting guides for El Cajon.